package com.example.smartlearning.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.example.smartlearning.entity.GuanZhuEntity;
import com.example.smartlearning.entity.LessonEntity;

public interface GuanZhuService extends IService<GuanZhuEntity> {
    String selectAllById(int id);

    String addNew(int userId, int id);

    String cancelById(int userId, int id);

}
